From Red Hat Security Advisory 2019:3286 :

An update for php is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

Security Fix(es) :

* php: underflow in env_path_info in fpm_main.c (CVE-2019-11043)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for FCGI protocol data, thus opening the possibility of remote code execution.(CVE-2019-11043)

This update for php72 fixes the following issues :

Security issue fixed :

CVE-2019-11043: Fixed possible remote code execution via env_path_info underflow in fpm_main.c (bsc#1154999).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Session fixation vulnerability in the Sessions     subsystem in PHP before 5.5.2 allows remote attackers     to hijack web sessions by specifying a session     ID.(CVE-2011-4718)

  - In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24     and 7.3.x below 7.3.11 in certain configurations of FPM     setup it is possible to cause FPM module to write past     allocated buffers into the space reserved for FCGI     protocol data, thus opening the possibility of remote     code execution.(CVE-2019-11043)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:4067-1 advisory.

  - An issue was discovered in PHP 7.3.x before 7.3.0alpha3, 7.2.x before 7.2.8, and before 7.1.20. The php-     fpm master process restarts a child process in an endless loop when using program execution functions     (e.g., passthru, exec, shell_exec, or system) with a non-blocking STDIN stream, causing this master     process to consume 100% of the CPU, and consume disk space with a large volume of error logs, as     demonstrated by an attack by a customer of a shared-hosting facility. (CVE-2015-9253)

  - The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to     string objects that result in a negative length, which allows remote attackers to cause a denial of     service (application crash) or possibly have unspecified other impact by leveraging a script's use of .=     with a long string. (CVE-2017-8923)

  - PHP 7.x through 7.1.5 allows remote attackers to cause a denial of service (buffer overflow and     application crash) or possibly have unspecified other impact via a long string because of an Integer     overflow in mysqli_real_escape_string. (CVE-2017-9120)

  - Libgd version 2.2.5 contains a Double Free Vulnerability vulnerability in gdImageBmpPtr Function that can     result in Remote Code Execution . This attack appear to be exploitable via Specially Crafted Jpeg Image     can trigger double free. This vulnerability appears to have been fixed in after commit     ac16bdf2d41724b5a65255d4c28fb0ec46bc42f5. (CVE-2018-1000222)

  - exif_read_from_impl in ext/exif/exif.c in PHP 7.2.x through 7.2.7 allows attackers to trigger a use-after-     free (in exif_read_from_file) because it closes a stream that it is not responsible for closing. The     vulnerable code is reachable through the PHP exif_read_data function. (CVE-2018-12882)

  - exif_process_IFD_in_MAKERNOTE in ext/exif/exif.c in PHP before 5.6.37, 7.0.x before 7.0.31, 7.1.x before     7.1.20, and 7.2.x before 7.2.8 allows remote attackers to cause a denial of service (out-of-bounds read     and application crash) via a crafted JPEG file. (CVE-2018-14851)

  - The Apache2 component in PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before     7.2.10 allows XSS via the body of a Transfer-Encoding: chunked request, because the bucket brigade is     mishandled in the php_handler function in sapi/apache2handler/sapi_apache2.c. (CVE-2018-17082)

  - ext/imap/php_imap.c in PHP 5.x and 7.x before 7.3.0 allows remote attackers to cause a denial of service     (NULL pointer dereference and application crash) via an empty string in the message argument to the     imap_mail function. (CVE-2018-19935)

  - In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a buffer over-read     in PHAR reading functions may allow an attacker to read allocated or unallocated memory past the actual     data when trying to parse a .phar file. This is related to phar_parse_pharfile in ext/phar/phar.c.
    (CVE-2018-20783)

  - When processing certain files, PHP EXIF extension in versions 7.1.x below 7.1.28, 7.2.x below 7.2.17 and     7.3.x below 7.3.4 can be caused to read past allocated buffer in exif_process_IFD_TAG function. This may     lead to information disclosure or crash. (CVE-2019-11034)

  - When processing certain files, PHP EXIF extension in versions 7.1.x below 7.1.28, 7.2.x below 7.2.17 and     7.3.x below 7.3.4 can be caused to read past allocated buffer in exif_iif_add_value function. This may     lead to information disclosure or crash. (CVE-2019-11035)

  - When processing certain files, PHP EXIF extension in versions 7.1.x below 7.1.29, 7.2.x below 7.2.18 and     7.3.x below 7.3.5 can be caused to read past allocated buffer in exif_process_IFD_TAG function. This may     lead to information disclosure or crash. (CVE-2019-11036)

  - Function iconv_mime_decode_headers() in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x     below 7.3.6 may perform out-of-buffer read due to integer overflow when parsing MIME headers. This may     lead to information disclosure or crash. (CVE-2019-11039)

  - When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in     PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 it is possible to supply it with     data what will cause it to read past the allocated buffer. This may lead to information disclosure or     crash. (CVE-2019-11040)

  - When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in     PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with     data what will cause it to read past the allocated buffer. This may lead to information disclosure or     crash. (CVE-2019-11041, CVE-2019-11042)

  - In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of     FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for     FCGI protocol data, thus opening the possibility of remote code execution. (CVE-2019-11043)

  - In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP DirectoryIterator class accepts     filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security     vulnerabilities, e.g. in applications checking paths that the code is allowed to access. (CVE-2019-11045)

  - In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some     systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with     string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can     read to disclosure of the content of some memory locations. (CVE-2019-11046)

  - When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in     PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 it is possible to supply it with data what     will cause it to read past the allocated buffer. This may lead to information disclosure or crash.
    (CVE-2019-11047, CVE-2019-11050)

  - In PHP versions 7.2.x below 7.2.31, 7.3.x below 7.3.18 and 7.4.x below 7.4.6, when HTTP file uploads are     allowed, supplying overly long filenames or field names could lead PHP engine to try to allocate oversized     memory storage, hit the memory limit and stop processing the request, without cleaning up temporary files     created by upload request. This potentially could lead to accumulation of uncleaned temporary files     exhausting the disk space on the target server. (CVE-2019-11048)

  - An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before     7.3.1. Invalid input to the function xmlrpc_decode() can lead to an invalid memory access (heap out of     bounds read or read after free). This is related to xml_elem_parse_buf in     ext/xmlrpc/libxmlrpc/xml_element.c. (CVE-2019-9020)

  - An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before     7.3.1. A heap-based buffer over-read in PHAR reading functions in the PHAR extension may allow an attacker     to read allocated or unallocated memory past the actual data when trying to parse the file name, a     different vulnerability than CVE-2018-20783. This is related to phar_detect_phar_fname_ext in     ext/phar/phar.c. (CVE-2019-9021)

  - An issue was discovered in PHP 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.2.
    dns_get_record misparses a DNS response, which can allow a hostile DNS server to cause PHP to misuse     memcpy, leading to read operations going past the buffer allocated for DNS data. This affects php_parserr     in ext/standard/dns.c for DNS_CAA and DNS_ANY queries. (CVE-2019-9022)

  - An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before     7.3.1. A number of heap-based buffer over-read instances are present in mbstring regular expression     functions when supplied with invalid multibyte data. These occur in ext/mbstring/oniguruma/regcomp.c,     ext/mbstring/oniguruma/regexec.c, ext/mbstring/oniguruma/regparse.c, ext/mbstring/oniguruma/enc/unicode.c,     and ext/mbstring/oniguruma/src/utf32_be.c when a multibyte regular expression pattern contains invalid     multibyte sequences. (CVE-2019-9023)

  - An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before     7.3.1. xmlrpc_decode() can allow a hostile XMLRPC server to cause PHP to read memory outside of allocated     areas in base64_decode_xmlrpc in ext/xmlrpc/libxmlrpc/base64.c. (CVE-2019-9024)

  - An issue was discovered in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before 7.3.3. Due to the way     rename() across filesystems is implemented, it is possible that file being renamed is briefly available     with wrong permissions while the rename is ongoing, thus enabling unauthorized users to access the data.
    (CVE-2019-9637)

  - An issue was discovered in the EXIF component in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before     7.3.3. There is an uninitialized read in exif_process_IFD_in_MAKERNOTE because of mishandling the     maker_note->offset relationship to value_len. (CVE-2019-9638)

  - An issue was discovered in the EXIF component in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before     7.3.3. There is an Invalid Read in exif_process_SOFn. (CVE-2019-9640)

  - An issue was discovered in the EXIF component in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before     7.3.3. There is an uninitialized read in exif_process_IFD_in_TIFF. (CVE-2019-9641)

  - ** DISPUTED ** An issue was discovered in PHP 7.x before 7.1.27 and 7.3.x before 7.3.3.
    phar_tar_writeheaders_int in ext/phar/tar.c has a buffer overflow via a long link value. NOTE: The vendor     indicates that the link value is used only when an archive contains a symlink, which currently cannot     happen: This issue allows theoretical compromise of security, but a practical attack is usually     impossible. (CVE-2019-9675)

  - When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x     below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read     past the allocated buffer. This may lead to information disclosure or crash. (CVE-2020-7059)

  - When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27,     7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function     mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or     crash. (CVE-2020-7060)

  - In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload     functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0     (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist     and encounter null pointer dereference, which would likely lead to a crash. (CVE-2020-7062)

  - In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when creating PHAR archive     using PharData::buildFromIterator() function, the files are added with default permissions (0666, or all     access) even if the original files on the filesystem were with more restrictive permissions. This may     result in files having more lax permissions than intended when such archive is extracted. (CVE-2020-7063)

  - In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while parsing EXIF data with     exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of     uninitialized memory. This could potentially lead to information disclosure or crash. (CVE-2020-7064)

  - In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers()     with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it.
    This may cause some software to make incorrect assumptions about the target of the get_headers() and     possibly send some information to a wrong server. (CVE-2020-7066)

  - In PHP versions 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files     using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which could lead to     a crash or information disclosure. (CVE-2020-7068)

  - In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when AES-CCM mode is used     with openssl_encrypt() function with 12 bytes IV, only first 7 bytes of the IV is actually used. This can     lead to both decreased security and incorrect encryption data. (CVE-2020-7069)

  - In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when PHP is processing     incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like
    __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge     cookie which is supposed to be secure. See also CVE-2020-8184 for more information. (CVE-2020-7070)

  - In PHP versions 7.3.x below 7.3.26, 7.4.x below 7.4.14 and 8.0.0, when validating URL with functions like     filter_var($url, FILTER_VALIDATE_URL), PHP will accept an URL with invalid password as valid URL. This may     lead to functions that rely on URL being valid to mis-parse the URL and produce wrong data as components     of the URL. (CVE-2020-7071)

  - In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to     connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would     cause PHP to access a null pointer and thus cause a crash. (CVE-2021-21702)

  - In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running     PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-     privileged users, it is possible for the child processes to access memory shared with the main process and     write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and     writes, which can be used to escalate privileges from local unprivileged user to the root user.
    (CVE-2021-21703)

  - In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using Firebird PDO     driver extension, a malicious database server could cause crashes in various database functions, such as     getAttribute(), execute(), fetch() and others by returning invalid response data that is not parsed     correctly by the driver. This can result in crashes, denial of service or potentially memory corruption.
    (CVE-2021-21704)

  - In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation     functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password     field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially     leading to other security implications - like contacting a wrong server or making a wrong access decision.
    (CVE-2021-21705)

  - In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing     functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains     URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus     interpreting the filename differently from what the user intended, which may lead it to reading a     different file than intended. (CVE-2021-21707)

  - In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when using Postgres     database extension, supplying invalid parameters to the parametrized query may lead to PHP attempting to     free memory using uninitialized data as pointers. This could lead to RCE vulnerability or denial of     service. (CVE-2022-31625)

  - In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when pdo_mysql extension     with mysqlnd driver, if the third party is allowed to supply host to connect to and the password for the     connection, password of excessive length can trigger a buffer overflow in PHP, which can lead to a remote     code execution vulnerability. (CVE-2022-31626)

  - In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the phar uncompressor code would recursively uncompress     quines gzip files, resulting in an infinite loop. (CVE-2022-31628)

  - In PHP versions before 7.4.31, 8.0.24 and 8.1.11, the vulnerability enables network and same-site     attackers to set a standard insecure cookie in the victim's browser which is treated as a `__Host-` or     `__Secure-` cookie by PHP applications. (CVE-2022-31629)

  - The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and resultant buffer     overflow that allows attackers to execute arbitrary code or eliminate expected cryptographic properties.
    This occurs in the sponge function interface. (CVE-2022-37454)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:3299 advisory.

  - gd: Unsigned integer underflow _gdContributionsAlloc() (CVE-2016-10166)

  - php: Buffer over-read in PHAR reading functions (CVE-2018-20783)

  - gd: Heap-based buffer overflow in gdImageColorMatch() in gd_color_match.c (CVE-2019-6977)

  - php: Invalid memory access in function xmlrpc_decode() (CVE-2019-9020)

  - php: Heap-based buffer over-read in PHAR reading functions (CVE-2019-9021)

  - php: memcpy with negative length via crafted DNS response (CVE-2019-9022)

  - php: Heap-based buffer over-read in mbstring regular expression functions (CVE-2019-9023)

  - php: Out-of-bounds read in base64_decode_xmlrpc in ext/xmlrpc/libxmlrpc/base64.c (CVE-2019-9024)

  - php: File rename across filesystems may allow unwanted access during processing (CVE-2019-9637)

  - php: Uninitialized read in exif_process_IFD_in_MAKERNOTE (CVE-2019-9638, CVE-2019-9639)

  - php: Invalid read in exif_process_SOFn() (CVE-2019-9640)

  - php: Heap buffer overflow in function exif_process_IFD_TAG() (CVE-2019-11034)

  - php: Heap buffer overflow in function exif_iif_add_value() (CVE-2019-11035)

  - php: Buffer over-read in exif_process_IFD_TAG() leading to information disclosure (CVE-2019-11036)

  - gd: Information disclosure in gdImageCreateFromXbm() (CVE-2019-11038)

  - php: Out-of-bounds read due to integer overflow in iconv_mime_decode_headers() (CVE-2019-11039)

  - php: Buffer over-read in exif_read_data() (CVE-2019-11040)

  - php: Heap buffer over-read in exif_scan_thumbnail() (CVE-2019-11041)

  - php: Heap buffer over-read in exif_process_user_comment() (CVE-2019-11042)

  - php: underflow in env_path_info in fpm_main.c (CVE-2019-11043)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:3300 advisory.

  - php: underflow in env_path_info in fpm_main.c (CVE-2019-11043)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:3724 advisory.

  - php: underflow in env_path_info in fpm_main.c (CVE-2019-11043)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to its banner, the version of PHP running on the remote web server is prior to 7.1.33, 7.2.x prior to 7.2.24, or 7.3.x prior to 7.3.11. It is, therefore, affected by a remote code execution vulnerability due to insufficient validation of user input. An unauthenticated, remote attacker can exploit this, by sending a specially crafted request, to cause the execution of arbitrary code by breaking the fastcgi_split_path_info directive.

ID	Name	Product	Family	Published	Updated	Severity
130442	Oracle Linux 7 : php (ELSA-2019-3286)	Nessus	Oracle Linux Local Security Checks	11/1/2019	4/25/2023	critical
130471	Amazon Linux AMI : php71 / php72, php73, php56 (ALAS-2019-1315)	Nessus	Amazon Linux Local Security Checks	11/4/2019	12/6/2022	critical
130621	SUSE SLES12 Security Update : php72 (SUSE-SU-2019:2909-1)	Nessus	SuSE Local Security Checks	11/7/2019	4/25/2023	critical
131820	EulerOS 2.0 SP5 : php (EulerOS-SA-2019-2546)	Nessus	Huawei Local Security Checks	12/9/2019	4/25/2023	critical
167950	SUSE SLES15 Security Update : php7 (SUSE-SU-2022:4067-1)	Nessus	SuSE Local Security Checks	11/19/2022	10/18/2023	critical
193829	RHEL 7 : rh-php72-php (RHSA-2019:3299)	Nessus	Red Hat Local Security Checks	4/24/2024	4/25/2024	critical
193986	RHEL 7 : rh-php71-php (RHSA-2019:3300)	Nessus	Red Hat Local Security Checks	4/27/2024	4/27/2024	critical
194173	RHEL 6 / 7 : rh-php70-php (RHSA-2019:3724)	Nessus	Red Hat Local Security Checks	4/28/2024	4/28/2024	critical
701235	PHP < 7.1.33 / 7.2.x < 7.2.24 / 7.3.x < 7.3.11 Remote Code Execution	Nessus Network Monitor	Web Servers	11/12/2019	11/12/2019	high

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